# SDR FFKA122

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 14, 2007
- Submitted: December 21, 2007
- Operation: Air carrier
- Aircraft: N401NA
- Make and model: Cessna 402B
- Registry model: [Cessna 402B](https://openairdocs.org/model/cessna-402b) (OpenAirDocs)
- Aircraft serial: 402B0035
- Aircraft time: 15,092 hours
- Engine: Cont TSIO520E
- Engine time: 2,424 hours, 1,057 cycles
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Connecting Rod
- Part number: IO550
- Part serial: S1462922
- Condition: Broken
- Location: Engine
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, E, R
- Precautionary procedure: E, B, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FFKA122

## Discrepancy

PILOT REPORTED A LOSS OF POWER AND DECLARED AN EMERGENCY.  MAINTENANCE INVESTIGATED THE LT ENGINE AND FOUND A HOLE IN THE CASE HALF AT THE BASE OF THE NR 6 CYLINDER.  THEY ALSO FOUND THE CONNECTING ROD IN 2 PIECES THE CONNECTING ROD CAP ALMOST FLATTENED AND BOTH CONNECTING ROD BOLTS SHEARED.   BROKEN PIECES HAVE BEEN SENT FOR ANALYSIS.

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